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Other Receivables | 6 Months Ended
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Jun. 30, 2018
Notes Receivable - Bank Acceptance/ Other Receivables [Abstract] |
OTHER RECEIVABLES | 6. OTHER RECEIVABLES As of June 30, 2018, other receivables mainly consisted of (i) advances to third parties of $7,557, bearing no interest, payable upon demand. As of December 31, 2017, other receivables mainly consisted of an advance to a third party of $7,652, bearing no interest, payable upon demand.

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- Definition The entire disclosure for other receivables. + References No definition available. + Details
Name: | creg_OtherReceivablesDisclosureTextBlock
Namespace Prefix: | creg_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_ReceivablesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration